Of all the things managers can do to stimulate creativity, perhaps the most efficacious is the deceptively simple task of matching people with the right assignments. Managers can match people with jobs that play to their expertise and their skills in creative thinking, and ignite intrinsic motivation. Perfect matches stretch employees’ abilities. The amount of stretch, however, is crucial: not so little that they feel bored but not so much that they feel overwhelmed and threatened by a loss of control.

That final sentence, I think, is key. Amabile doesn’t reference the word, but it sounds like what this does is help engineer “flow“.